say it again, ohio, nevada -- >> ohio, wisconsin, nevada. if barack obama gets those three, can win every other swing state -- >> do the polls tell us that he is ahead in those three? >> yes. >> they do? >> he is ahead in all three. in fact of the nine swing states, tyler, mitt romney has a clear lead only in the state of north carolina. he is even with president obama in florida and many strategists in both parties believe florida will go to mitt romney but he has got to get a lot more than that. >> john harwood, thank you very much. as john outlined it is very difficult for either candidate, frankly, to get to that magic 270 number without the state of ohio and here's video evidence from cleveland as to how important it is. both the romney and the biden campaign planes making stops at the cleveland hopkins airport and holding last-minute appearances in the state. our senior correspondent scott cohn is in the buckeye state, a state with the state of the economy actually cuts both ways. scott? >> yeah, it does, tyler. first, a look at how th